West Bengal Pollution Control Board |
Siliguri Laboratory |
Paribesh Bhawan, Paribahan Nagar, P.O. Matigara, Siliguri,Darjeeling 734 428. |
| Station: MAHANANDA AT SILIGURI | River Basin: Mahananda | CPCB Station Code: 1946 |
| Sample Date: 13/08/2019 | Sample Time: 11:25 | |
| Human Activities: Bathing, Washing and Fishing. | Weather: Sunny and Clear | Water Body: Mahananda at Siliguri |
| Frequency Of Monitoring: Quarterly | Use Based Class: C | Approximate Depth(Bottom/Table): 1.00 m |
| Color & Intensity: Moderate Green and muddy | Odour: Fishy | Visible effluent discharge: Moderate |
| Water Quality | ||
|---|---|---|
| Parameter | Test Result | Unit |
| BOD | 1.60 | mg/l |
| Conductivity | 158.70 | µs/cm |
| Fecal Coliform | 12000 | MPN/100ml |
| Nitrate-N | 2.31 | mg/l |
| pH | 7.43 | Unit |
| Temperature | 29 | ⁰C |
| Total Coliform | 33000 | MPN/100ml |
| Total Suspended Solids(TSS) | 108.00 | mg/l |
| Turbidity | 60.20 | NTU |
| Calcium | 36.00 | mg/l |
| Chloride | 10.76 | mg/l |
| COD | 28.24 | mg/l |
| Fluoride | BDL | mg/l |
| Magnesium | 28.00 | mg/l |
| Phenolpthalein Alkanity | NIL | mg/l |
| Sodium | 10.15 | mg/l |
| Phosphate-P | 0.011 | mg/l |
| Sulphate | 15.17 | mg/l |
| Total Alkalinity | 56.00 | mg/l |
| Total Dissolved Solids(TDS) | 96.00 | mg/l |
| Total Fixed Solids(TFS) | 156.00 | mg/l |
| Total Hardness as CaCo3 | 64.00 | mg/l |
| Total Kjeldahl Nitrogen(TKN) | mg/l | |
| Potassium | 2.30 | mg/l |
| Ammonia-N | 0.18 | mg/l |
| Dissolved O2(DO) | 7.40 | mg/l |
| Boron | 0.017 | mg/l |